headers_check fix: powerpc, kvm.h

fix the following 'make headers_check' warnings:

  usr/include/asm-powerpc/kvm.h:23: include of <linux/types.h> is preferred over <asm/types.h>
  usr/include/asm-powerpc/kvm.h:26: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>

arch/powerpc/include/asm/kvm.h

@@ -20,7 +20,7 @@
 #ifndef __LINUX_KVM_POWERPC_H
 #define __LINUX_KVM_POWERPC_H
 
-#include <asm/types.h>
+#include <linux/types.h>
 
 struct kvm_regs {
 	__u64 pc;